What is true of cDNA produced using horse liver tissue as a starting material?
A)it could be used to create a library of genes expressed in horse liver
B)it is produced from tRNA using reverse transcriptase
C)it contains just the introns of genes from horse liver cells
D)it could be used to study how bacterial cells splice introns
E)it is produced using chromosomal DNA and DNA polymerase

Question

Quizplus · Accepted Answer

cDNA (complementary DNA) is produced from mRNA (messenger RNA) using reverse transcriptase. This means that cDNA represents the genes that are actively transcribed and translated in the starting tissue. Therefore, cDNA produced using horse liver tissue as a starting material could be used to create a library of genes expressed in horse liver. Option B is incorrect because cDNA is produced from mRNA, not tRNA. Option C is incorrect because cDNA does not contain introns. Option D is incorrect because bacterial cells do not splice introns in their genes. Option E is incorrect because cDNA is produced from mRNA using reverse transcriptase, not from chromosomal DNA using DNA polymerase.

What Is True of CDNA Produced Using Horse Liver Tissue